426f358 all: run pytest with -vv in package build

Authored and Committed by praiskup 10 months ago
    all: run pytest with -vv in package build
    
    It is sometimes hard to decode from the build-log what was the unittest
    failure.  Let's use double-verbose mode which prints e.g. much more
    verbose assertion diffs, when some assert fails.
    
        
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